In this special series from Sideways, called A New Frontier, Matthew Syed explores the most out of this world ethical questions posed by the evolution of human space exploration. He takes us into the cosmos with stories from astronauts who’ve been there and those who can only dream of going, to explore the moral debates that have permeated space exploration since before the moon landings, and are evolving dramatically today in a new era of commercial space flight, of asteroid mining and almost daily satellite launches. Matthew begins the series by diving into the ethics of humanity’s search for extra-terrestrial life. In 1974, Richard Isaacman was a young graduate, studying to become an astronomer, from some of the field's biggest names - like Carl Sagan and Frank Drake. At just 21-years-old, he’s asked to contribute to humankind's first ever deliberate attempt to send a targeted radio transmission to a cluster of stars in the outer reaches of the galaxy. A rudimentary picture, designed to be intercepted and decoded by aliens. Delving into our obsession with aliens, science fiction and the vastness of space, Matthew discovers how asking questions about space ethics can often lead us to answers that tell us much more about the ways we treat our own environment, other animals, and each other, than it does about little green men.With former NASA astronaut John Herrington, York University astronomer Sarah Rugheimer and space ethicist, podcaster and author Erika Nesvold. Presenter: Matthew Syed Producer: Leona Hameed Series Editor: Katherine Godfrey Sound Design and Mix: Rob Speight Theme music by Ioana Selaru A Novel production for BBC Radio 4

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